Why is my phone so slow?

Is this an android thing or a phone thing? It is immensely irritating that andriod continues to accept input while it is tied up, causing it to process all sorts of input if buttons are repeatedly pressed, and unintended consequences, once it gets its **** together. Now that my Note II is dragging *** like a sick hippo on 4.4.2, it makes me want to throw the phone in the trash and get a goddamn Tracphone.